Belt-tightener



(No Model.)

C. GORL & A. P. PORR.

BELT TIGHTENBR.

Patented Dee. 9, 1890.

CYRUS COR-L AND ALBERT P. PORR, OF ALTA, IOVA.

BELT-TIGHTENER.

' SPECIFICATION forming part of Letters Patent No. 442,514, dated December 9, 1890.

Application filed September 20, 18.90- Serial No. 365,647. (No model.)

To @ZZ whom t may concern:

Be it known that we, OYRUS CORL and AL- BERT P. PORR, citizens of the Unit-ed States, residing atAlta, in the county of Buena Vista and State of Iowa, have invented certain new and useful Improvements in BeltTighteners5 and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertaius to make and use t-he same.

Our invention consists in a new and iinproved belt-tightener for tightening belts and holding them while their ends are being laced or otherwise fastened together, our invention combining great simplicity of construction with effectiveness and convenience in use; and our invention will be hereinafter fully described and claimed.

Referring to the accompanying drawings, Figure l is a perspective View of oui-new and improved belt-tightener, showing the same arranged in its operative position with the ends of a belt between its clamps. Fig. 2 is a similar view showing the hand-lever removed, and Fig. 3 illustrates in detail certain parts which will be hereinafter described.

The same letters of reference indicate corresponding parts in all the iigures. t

Referring to the several parts by letter, A A indicate the end clamps of our tightener, between which the ends of the belt are secured. These clamps consist each of two flat parallel metal strips or bars a a', secured together at their ends by screws b, on the ends of which nuts h are screwed. The top bar a of the clamp A is' formed with a central circular aperture c2, while the top bar a of the other clamp is formed with recessed bearing-lugs a3 in its inner upper edge.

B indicates a rack-bar having the series of inclined teeth B on its upper edge and formed at one end with a downwardlyextending pivot-pin B2, adapted to fit in the central aperture o,2 of the clamp A.

C indicates a metal yoke, the free ends of which are forlned with the rounded lugs c, and the yoke is formed on the under side of its center with a beveled detent C.

In operation the ends of the belt are secured between the clamps A A', which may be done by removing the screw at one end of each clamp and slipping the end of the belt into the clamp, when the screws are replaced and the nuts tightened to irlnly clamp the belt ends in the clamps. The pivot-pin B2 at the end of the rack-barB is then fitted in the central aperture d2 of the clamp A, the free end of the bar resting on the clamp A and the ends of the yoke C are engaged with the recessed bearing-lugs d3 of the clamp A. The end lever D is then placed in position on the rack-bar by fitting its bifurcated lower end d over the bar, and the hook E, which is pivoted to the lever, is caught in an eye C2 on the V center of the yoke'C. A metal clip F is then placed over the rack-bar, and is pivoted at its lower lend to the lower end of the lever by an easily-removable pivot-pin G. The upper end of this clip is formed with a beveled detent F, adapted to engage with the inclined teeth of the rack-bar. It will now be seen that on drawing back the handle of the lever the detent on the upper end of the clip F will engage with the teeth of the rackbar, while the lever will pull the yoke C over the top of the said bar, the detent C of the yoke sliding over the inclined teeth and the two clamps A and A, and consequently the two ends of the belt being thus drawn toward each other. lVhen the lever-handle is pushed forward, the detent C of the yoke C will engage with the teeth of the rack-bar, thus locking the yoke and holding the two clamps and the ends of the belt at the point to which they have been stretched toward each other, while the lower end of the lever slides back, carrying the clip F over the rack-bar, so that on the next backward movement of the lever-handle the clamps will be drawn still closer together. Then the belt is stretched sutliciently tight, the pin G is pulled out, and the lever, with the clip F and the hook E, are removed out of the way, the yoke C, locked on the rack-bar, holding the ends of the belt firmly as they have been stretched ready to be laced or otherwise fastened together. y

The construction, operation, and advantages of our new and improved belt-tightener will be readily understood from the foregoing description, taken in connection with the accompanying drawings. It will be seen that IOO our invention is very simple, strong, and dnrable in its construction and exceedingly effective and convenient in its operation.

Having thus described our invention, what We claim, and desire to secure by Letters Patent, isy l. In a belt-tightener, the combination of the clamp A, having the bearing-aperture a?, the clamp A', having the recessed bearinglugs a3, the rack-bar having the end pivotpin, the yoke C, having the end lugs and the detentrG, and means VVfor inovingnthe said yoke over the rack-bar, substantially as set forth.

2. The combination of the clamp A, having the beati ng'- aperture a2, the clamp A', having the recessed bearing-1u gs a3, the rack-bar having the end pin B2, the yoke C, having the end lugs, the detent C', and the central eye C2, the lever having the bifurcated lower end and the pivoted hook E, the clip F, having the detentFat its upper end, and the removable pvot-pin G, substantially as set forth.

In testimony whereof We affix onr signatn res in presence of two Witnesses.

CYRUS CORL. ALB-ERT P. PORR.

rWitnessesi':

SANFORD MILLER, PAUL WESTON. 

